I am still having problems with thumbnails not being shown properly.
Strangely I am having the same problem with version 1.2.7 now.
Obviously something odd is happening at my end.
In Windows Explorer > Tools > Folder Options I have checked "Don't cache thumbnails", but that hasn't made a difference.
Thumbnails in Windows Explorer are working fine - which is strange because SC seems to use the Windows Explorer engine to display the thumbnails ???
Any ideas ???